Results 141 to 150 of about 2,184,733 (309)
Curlometer and gradient techniques: past and future applications
Frontiers in Astronomy and Space SciencesWe review the range of applications and use of multi spacecraft techniques, applicable to close formation arrays of spacecraft, focusing on spatial gradient based methods, and the curlometer in particular. The curlometer was originally applied to Cluster
M. W. Dunlop +8 more
doaj +1 more source
Computer-Aided Civil and Infrastructure Engineering, EarlyView.Abstract Grain morphology is a fundamental characteristic of lunar soil that influences its mechanical properties, sintering behavior, and in situ resource utilization. However, traditional two‐dimensional imaging methods are time‐consuming and lack full three‐dimensional (3D) structural information. This study presents an automated deep learning‐based
Siqi Zhou +6 more
wiley +1 more source
Technical Measures, Environmental Protection, and Trade
Review of International Economics, EarlyView.ABSTRACT Technical regulations are increasingly numerous, complex, and often less transparent than traditional price‐based measures. Widely employed to achieve nontrade policy objectives, these measures are frequently adopted for environmental protection purposes. However, the trade effects of environmental measures remain underexplored. Using a unique
Fabio Gaetano Santeramo +2 more
wiley +1 more source
A reconstruction method of electron density distribution in the equatorial region of magnetosphere [PDF]
Advances in Astronomy and Space Physics 5, 104-108 (2015), 2017 A method for the estimation of electron density from the ratio of the wave magnetic and electric field amplitude of whistler waves is developed. Near the geomagnetic equator, whistler wave normals are mainly close to the direction of the background magnetic field. Dispersion relation of whistler wave in the parallel propagation approximation is used in
arxiv
The Limited Place in Cognitive Space
Topics in Cognitive Science, EarlyView.Abstract How we judge the similarity between stimuli in the world is connected ultimately to how we represent them. Because of this, decisions about how we model similarity, either in terms of human behavior or patterns of neural activity, can provide key insights into how representations are structured and organized.
Carl J. Hodgetts, Ulrike Hahn
wiley +1 more source
Monitoring young associations and open clusters with Kepler in two-wheel mode [PDF]
arXiv, 2013 We outline a proposal to use the Kepler spacecraft in two-wheel mode to monitor a handful of young associations and open clusters, for a few weeks each. Judging from the experience of similar projects using ground-based telescopes and the CoRoT spacecraft, this program would transform our understanding of early stellar evolution through the study of ...
arxiv
Systems Engineering of a Nuclear-Electric Spacecraft [PDF]
, 1961 Studies have shown that nuclear-electric propulsion systems will provide superior payload capability and unique advantages over chemical systems for high-energy deep-space missions.
Beale, Robert J.
core +1 more source
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley +1 more source
Nursing 4 Cluster Spacecraft with aging Batteries through Eclipses
, 2008 The Cluster mission was launched in 2000 to investigate for 3 years the interaction between the solar wind and the Earth magnetosphere. The mission has been extended until end 2009.
J. Volpp +9 more
semanticscholar +1 more source
Thunderbird International Business Review, Volume 67, Issue 4, Page 465-486, July/August 2025.ABSTRACT This study uses a novel application of panel fuzzy‐set qualitative comparative analysis (fsQCA) in the international management field. utilizing a unique database capturing reasons for foreign direct investment (FDI), and state‐level location, we explain location decisions of high‐technology South Korean (henceforth Korean) multinational ...
Jae‐Yeon Kim +3 more
wiley +1 more source